He sounds like me during my last big mania. Just substitute photography for the gambling. I spent over $10,000 on it.

My doctor says that alcohol is an absolute no-no for bipolar people. For me, it made me think I was extra cool while I was manic. Then when the depression hit, it was just to drown my sorrows. Has your father been diagnosed? Is he on medication? It doesn't sound like it. Also, if he is bipolar, the gambling may also be a sign of some kind of obsessive disorder.

There isn't really a good way to break someone out of a manic episode other than getting help from a psychiatrist or a therapist. Then he can get on medication and therapy to help him realize all of the harm he is causing.

Sounds like your family's life is on the rollercoaster ride. I hope your father gets the help that he needs soon.